工程地质学报2018，Vol.26Issue(2)：528-539,12.DOI:10.13544/j.cnki.jeg.2017-039
PFC2D模拟裂隙岩石裂纹扩展特征的研究现状
RESEARCH PROGRESS ON PFC2D SIMULATION OF CRACK PROPAGATION CHARACTERISTICS OF CRACKED ROCK
摘要
Abstract
Two dimensional numerical particle flow code (PFC2D) is an important method to study the crack propagation characteristics of cracked rock.In review of related literatures,it is analyzed and summarized as follows:the current PFC2D simulation methods are summarized in three aspects of particle contact constitutive model,microparameters calibration and simulation method of crack.According to the current research,the PFC2D simulation of crack propagation characteristics is summarized focusing on the single cracked,intermittent double cracked rock under different loading methods.On this basis,the shortcomings of the current research are pointed out as follows.The fracture toughness of PFC2D model is not in line with the actual value of rock.Simulation results of parallel-bond model and test results of rock are different.There are differences between real crack and simulation crack.Combined with the existing shortcomings in the study,the corresponding solutions are put forward and are expected to contribute to the development of PFC2D simulation methods for cracked rocks.关键词
PFC2D/裂隙岩石/裂纹扩展/研究现状Key words
PFC2D/Cracked rock/Crack propagation/Research progress分类
建筑与水利引用本文复制引用
陈鹏宇..PFC2D模拟裂隙岩石裂纹扩展特征的研究现状[J].工程地质学报,2018,26(2):528-539,12.基金项目
国家自然科学基金项目(41272377),四川省教育厅科研项目(17ZB0222)资助. （41272377）
